from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A recording on an optical disk, especially of a movie, that can be played on a television. See Usage Note at compact disk.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An optical disc used to record video images on special equipment
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a digital recording (as of a movie) on an optical disk that can be played on a computer or a television set
Originally a German trademark.(American Heritage® Dictionary of the English Language, Fourth Edition)